Alert archive / New Mexico / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS El Paso, TX

August 4, 2021Sierra County, New Mexico

NWS El Paso, TX issued this severe thunderstorm warning at Aug 4, 2021, 10:46 PM MDT for Sierra County, New Mexico. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 4, 2021, 10:46 PM MDT (04:46 UTC)
Expired
Aug 4, 2021, 11:30 PM MDT
In force
44 min
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Sierra County, NM

The radar

The Holloman AFB radar (KHDX), 107 km from the middle of the area, began a volume at 04:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Santa Teresa, NM (KEPZ), launched 00:00Z, 4.8 hours before the alert went out and 153 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Santa Teresa, NM at 00:00Z on 2021-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 466 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 00:00Z on 2021-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
466 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
2495 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

175 
WUUS54 KEPZ 050446
SVREPZ
NMC051-050530-
/O.NEW.KEPZ.SV.W.0069.210805T0446Z-210805T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service El Paso TX
1046 PM MDT Wed Aug 4 2021

The National Weather Service in El Paso has issued a

* Severe Thunderstorm Warning for...
  Central Sierra County in south central New Mexico...

* Until 1130 PM MDT.

* At 1045 PM MDT, a severe thunderstorm was located over City of
  Elephant Butte, moving south at 15 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Cuchillo, Truth or Consequences, City of Elephant Butte, Palomas,
  Williamsburg, Elephant Butte Lake, Lost Canyon, Lower Palomas
  Canyon, Ash Canyon, Rock Canyon, Hot Springs Landing, Lakeshore
  Highlands and Upper Palomas Canyon.

This includes Interstate 25 in New Mexico between mile markers 66 and
83.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3327 10734 3327 10712 3300 10713 3301 10741
TIME...MOT...LOC 0445Z 001DEG 14KT 3320 10724 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

TSB
2 follow-up statements
113 
WWUS54 KEPZ 050511
SVSEPZ

Severe Weather Statement
National Weather Service El Paso TX
1111 PM MDT Wed Aug 4 2021

NMC051-050530-
/O.CON.KEPZ.SV.W.0069.000000T0000Z-210805T0530Z/
Sierra NM-
1111 PM MDT Wed Aug 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM MDT
FOR CENTRAL SIERRA COUNTY...

At 1110 PM MDT, a severe thunderstorm was located near Truth or
Consequences, moving south at 15 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Truth or Consequences, Palomas, Williamsburg, Ash Canyon, Lower
Palomas Canyon and Upper Palomas Canyon.

This includes Interstate 25 in New Mexico between mile markers 66 and
76.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3315 10736 3315 10715 3300 10713 3301 10741
TIME...MOT...LOC 0510Z 001DEG 14KT 3310 10724 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

TSB
599 
WWUS54 KEPZ 050525
SVSEPZ

Severe Weather Statement
National Weather Service El Paso TX
1125 PM MDT Wed Aug 4 2021

NMC051-050534-
/O.EXP.KEPZ.SV.W.0069.000000T0000Z-210805T0530Z/
Sierra NM-
1125 PM MDT Wed Aug 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SIERRA COUNTY WILL
EXPIRE AT 1130 PM MDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
this thunderstorm.

LAT...LON 3315 10736 3315 10715 3300 10713 3301 10741
TIME...MOT...LOC 0524Z 001DEG 14KT 3307 10724 

$$

TSB

The office that day

Everything else NWS El Paso, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 7:45 PM MDTAreal Flood AdvisoryEPZGrant2 hr

Nearby

Severe Thunderstorm Warnings in New Mexico, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.